Enerly grew up in Ammerud on Oslo's east side, and started his career for local clubs Grorud and later Grei.
On 29 October 2005, in the last round of the 2005 season, Fredrikstad faced league leaders Start, away in Kristiansand struggling to avoid relegation.
Enerly was unable to get up or even move a muscle, and medical personnel rushed to his aid carried him off on a stretcher, wearing a neck brace.
Later that evening it was announced that Enerly, who had been sent to Oslo's Ullevål Hospital for surgery, had broken his neck and was quadriplegic.
[1] In the days following the accident, a massive SMS campaign was created getting people to light a candle in their window at 8:00 in the evening (Enerly's shirt number was #8).
As of December 2011, Enerly is still reliant on an electric wheelchair, but he confirmed to Norwegian newspapers that he had stood upright on his own feet for the first time since the accident during a training session in a therapeutic pool.
Dagfinn Enerly and Tor Trondsen held a testimonial match for Knut Thorbjørn Eggen.